[Jenkins release job] changelog.txt updated by release build 5.2.0.Alpha1
[Jenkins release job] changelog.txt updated by release build 5.2.0.Alpha1

hibernate/hibernate-ogm,schernolyas/hibernate-ogm,hibernate/hibernate-ogm,DavideD/hibernate-ogm,schernolyas/hibernate-ogm,Sanne/hibernate-ogm,DavideD/hibernate-ogm,schernolyas/hibernate-ogm,Sanne/hibernate-ogm,hibernate/hibernate-ogm,hibernate/hibernate-ogm,DavideD/hibernate-ogm,Sanne/hibernate-ogm,DavideD/hibernate-ogm,Sanne/hibernate-ogm